Home / 7,919.66-11,885.25-3,542.06

Finding the Fourth Proportional to 7,919.66, 11,885.25 and 3,542.06

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Solution

The fourth proportional to 7,919.66, 11,885.25 and 3,542.06 is: 5,315.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.66 : 11,885.25 = 3,542.06 : x
  2. Step 2: Convert to fraction form
    7,919.66/11,885.25 = 3,542.06/x
  3. Step 3: Cross multiply
    7,919.66x = 11,885.25 × 3,542.06
  4. Step 4: Simplify right side
    7,919.66x = 42,098,268.62
  5. Step 5: Solve for x
    x = 42,098,268.62/7,919.66
  6. Step 6: Final answer
    x = 5,315.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.